Transparent Oh Polymer Hydroxyl Terminated Polydimethylsiloxane CAS 70131-67-8

• Customization: Available
• CAS No.: 63148-58-3
• Formula: Si
• Model NO.: Zinca-107
• EINECS: 00000000
• Status: Liquid Catalyst
• Response Type: Polymerization
• Classification: Homogeneous Catalysts
• Usage: Positive Catalyst
• Effect Size: Promoter Catalysts
• Manufacturing Method: Mechanical Mixing
• Application Industry: Industry
• Name: Phenyl Methyl Zinca Silicone Oil
• Application: Textile Printing Auxiliary, Dying Auxiliary
• Freezing Point Max: -40
• Viscosity: 75-1000
• Refractive Index: 1.48
• Flash Point Min: 280
• Transport Package: 5kg Plastic Drums, 25kg Plastic Drums, 25kg Iron D
• Specification: 5kg plastic drums, 25kg plastic drums, 25kg Iron d
• Trademark: ZINCA
• Origin: Anhui China
• HS Code: 39100000
• Production Capacity: 50000000

Product Description

Product Description

ZINCA-OH polymer/ hydroxyl silicone oil
 
Chemical Name: OH polymer/ hydroxyl silicone oil

Synonyms:

OH polymer
Hydroxyl silicone oil

CAS NO.: 70131-67-8

Description

OH hydroxyl silicone oil is prepared from the silicone monomer, and the structure is as below:

HO-SI (CH3) 2O [Si (CH3) 2O] NSI (CH3) 2-OH

This product is a special rubber that can vulcanize at room temperature. Its chemical component is a polydimethyl siloxane with hydroxypolydimethyl as the end group. It has excellent electrical insulation and weather resistance, also features low volatility and
high hardness, and can be used for a long time under -50ºC-250ºC

Product Features

In this product, an appropriate amount of cross -linking agent, catalyst are added, after mixed evenly can be

vulcanized into elastomer at room temperature. Silicon rubber after vulcanization has excellent high and low

temperature resistance, which can be used for a long time under -60 ° C ~+250 ° C. The dielectric

performance is excellent, the product also features waterproof, moisture proof, aging resistance, as well as

excellent electrical insulation, but with poor acid, alkali, solvent resistance. The product can be widely used

for insulation, moisture -proof, sealing and potting for shock -proof, as well as filling and sealing of the

buildings, molding of rubber and plastic products and art works, ablation coating resistance, impression

materials, release agent etc.

Technical Index: 

Appearance	Colorless, transparent and viscous liquid
Viscosity(25ºC,cst)	350~10000000
Volatility(150ºC*3h, %)	≤1.5
Surface curing time(h)	≤2
Metal ion content	≤20PPM

Application

Depending on the hydroxyl content and viscosity, respectively for different industries .

1. the medium-high viscosity of the product can be used as a paper -based of anti- adhesive agent, the cured film has excellent anti-sticking effect, such as the label backing paper , asphalt wrapping, sealing tape base paper, decor paper end paper processing.

2. in the electrical power industry as the main component insulating paint or a component of the insulator.

3. Used as a condensation-type RTV silicone rubber based adhesive and diluted material, such as sealants and plastic mold base material.

4. Alter dimethyl silicone oil, and easy to emulsify .

5. Small molecule hydroxyl silicone oil (25 ~ 30CP, hydroxyl content of about 8%) is an excellent control agent of silicone rubber, it not only simplifies the process of silicone rubber to improve the processing performance ( reduce heat treatment ) but also increased the transparency of products, improved working conditions.

6. New development applications.
Dosage:

Usually with the curing agent to achieve the crosslinking, it must be fixed by means of a coupling agent for the release paper, generally the curing agent is about 3 to 5% of gum base, the coupling agent is about 0.5 to 1 % of gum base.

In most cases the solvent was diluted with 10 times the first gum base, then add the coupling agent and the curing agent after mixing uniformly coated on the substrate surface at room temperature or heat curing.  It need over 30 minutes at room temperature,  and 30 seconds for 120 ~ 150 o C. there is no need any solvents for sealants and molds for rubber, add the curing agent and stir ( one-component and two-component curing agent is used is not the same ) , after 30 to 120 minutes degassing it can be cured.

Note:

Hydroxy silicone oil can not be mixed with high temperature water vapor, acid/alkali substances, alkoxysilanes, otherwise there is a tendency curing and viscosity changes.

Packaging & Shipping

Packaging and Storage:

1. The product should be stored in airtight plastic bucket clean not in contact with acid, alkali substances;

2. Stored at room temperature and ventilated shade;

3. According to the non -toxic and non-dangerous goods storage and transportation.

Storage:

      The shelf life is 2 years when the container is sealed.

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